The CommSync
II-D can provide a wide variety of time and frequency output
signals with 8 I/O Module slots and 200+ available Option
Modules.Utilized as
a Primary Reference Source (PRS), the CommSync II-D provides
either Standard Positioning Service (SPS) or the very latest
in GPS military technology; SAASM Precision Positioning
Service (PPS) (for authorized users only).

The CommSync
II-D delivers all the performance and functionality of the
CommSync II in a 2U chassis. The heart of the CommSync II-D
is the GPS Time and Frequency (GTF) reference module. The GTF is a
hot-swappable, front panel plug-in module (with two slots
available for redundancy). It is a self-contained module
with Quartz Crystal (OCXO) or Rubidium Atomic oscillator
options, as well as Civil or SAASM MPE-S
GB-GRAM, or SAASM Force 22E MRU GPS
receiver options.
Dual Power Supplies and Reference Modules provide redundancy
with uninterrupted automatic switchover.

Like our flagship CommSync
II, the CommSync II-D provides a
frequency accuracy of 1E-12 and a time accuracy of < 50 ns
Peak to UTC. Additional I/O slots can be utilized by
configuring a slaved CommSync II-D with Distribution Time
and Frequency (DTF) modules.

For Monitor
and Control functions there is an RS-232 communications port
on the front panel of the GTF/DTF module, a front panel
keypad and display, as well as optional Gigabit
Ethernet plug-in modules providing Telnet, SNMP, PTP v2
(1588-2008),
and Network Time Protocol.
Zyfer Monitor (FEI-Zyfer's remote access utility) provides
complete remote control, including system status, setup,
alarm logging and user management over a standard TCP/IP
connection.

(e) U.S. Government
policy restricts the sale of Precise Positioning
Service (PPS) equipment to those
authorized by the U.S. Department of Defense. Non-U.S.
authorized users must purchase PPS equipment
through the Foreign Military Sales (FMS) process.

(f) Dependent on the
accuracy of initialization parameters from PLGR
or DAGR handheld SAASM GB-GRAM receivers, or
other initialization devices.